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DAB digital audio broadcast
DAC digital-to-analog converter
DAMA demand-assigned multiple access
D-AMPS Digital Advanced Mobile Phone Service
DARPA Defense Advanced Research Procurement Activity
DAQ data acquisition
DAWS Digital Advanced Wireless Service
DBF digital beamforming
DBR dual behavior resonators
DBS direct broadcast service
DBS direct broadcast satellite
DCFL direct-coupled field-effect transistor logic
DCOM Distributed Component Object Model
DCR downconverting receiver
DCR direct conversion receiver
DCS1800 digital communication system at 1800 MHz
DCXO digitally compensated crystal oscillator
DDS direct digital synthesis
DEBS dynamic electronic bias system
DECT Digital European Cordless Telecommunications (1880 to1900 MHz)
DECT Digital Enhanced Cordless Telephony (new name)
DESC Defense Electronic Supply Center
DEVM differential error vector magnitude
DF direction finding
DFB distributed feedback
DFD digital frequency discriminator
DF dissipation factor
D-FET depletion-mode field-effect transistor
DFN dual flat no-lead (package)
DFT design for test
DFT discrete Fourier transform
DGPS Differential Global Positioning System
DGS defected ground structure
DHBT double-heterojunction bipolar transistor
DIFM digital instantaneous frequency measurement
DIMM dual in-line memory module
DIN Deutsche Industrial Norms (German standards agency)
DLRU decoy launch/recovery unit
DLVA detector log video amplifier
DMO direct mode operation
DMOS diffused metal-oxide semiconductor
DMR dual-mode resonators
DMS defected microstrip structure
DMSP Defense Meteorological Satellite Program
DMT digital multiplexed trunk
DMUX demultiplexer
DNL dynamic nonlinearity
DoA direction of arrival
DPCCH dedicated physical control channel
DPD digital predistortion
DPDCH dedicated physical data channel
DPHEMT double heterojunction pseudomorphic high electron mobility transistor
DPLL digital phase-locked loop
DPSK differential phase shift keying
DQPSK differential quadrature phase-shift keying
DRFM digital radio frequency memory
DRA dielectric resonator antenna
DRO dielectric resonator oscillator
DRRS digital radio relay system
DS direct sequence
DSC differential scanning calorimetry
DSM derivative superposition method
DSO digital storage oscilloscope
DSP digital signal processing
DSRC dedicated short range communication
DSSS direct sequence spread spectrum
DTCXO digital temperature-compensated crystal oscillator
DTF distance-to-fault
DTH direct to home
DTMF dual-tone multiple frequency
DTO digital test oscilloscope
DTO digitally tuned oscillator
DTX discontinuous transmission
DUT device under test
DVB digital video broadcasting
DWC digital wireless communications
DWDM dense wavelength division multiplexing